For the returning designers, the competition will go into overdrive when it's revealed that three past "Project Runway" winners are among this season's crop of contestants, as new host Alyssa Milano warns that on "All Stars," even the smallest mistake will send you packing. Season 3 premieres Thursday, October 24 at 9 PM.

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"Project Runway All Stars" Season 3

Ari South, from "Project Runway" Season 8, returns to the catwalk to compete in "Project Runway All Stars" Season 3.